1. Field of the Invention
The present invention relates to an electrical connector, more particularly to an electrical connector with detecting terminals for detecting different plugs inserted therein.
2. Description of Related Art
China patent issue No. CN202231226U, issued on May, 23, 2012, discloses a conventional electrical connector including an insulative housing, a plurality of contacts retained in the insulative housing, a shell attached to the insulative housing, an insulative arm insert-molding on a side of the insulative housing and a detecting contact retained in the insulative arm. The insulative housing has a tongue portion. The shell surrounds the tongue portion to form a mating cavity. The shell has two side walls. One of the side walls has a detecting arm tore from the side wall. The detecting arm has a resilient arm extending forwardly and an engaging portion at a free end of the resilient arm. The detecting contact retained in the insulative arm, has a contacting portion cantilevered outside of the side wall of the shell. To form such structure, more materials is needed to make the electrical connector and the detecting contact located outside of the side wall makes a much more big size of the electrical connector.
Hence, an improved electrical connector with improved structure is needed to solve the problem above.
An electrical connector comprises an insulative housing having a base portion and a tongue portion extending forwardly form the base portion. A plurality of contacts are retained in the insulative housing; A shell surrounds the tongue portion to form a mating port and has two side walls located at two sides of the mating port, at least one of the side walls forming a detecting pad. A detecting contact is retained in the insulative housing and located corresponding to the detecting pad, each of the detecting contact has a detecting arm extending forwardly. wherein the side wall further has a bridge behind the detecting pad, the bridge and the detecting pad both protrude beyond the side wall to form a room therebetween, and the room is located beside the mating port and communicates with the mating port, the detecting arm is received in the room and partly protrudes into the mating port.
The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention.
For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be obvious to those skilled in the art that the present invention may be practiced without such specific details. In other instances, well-known circuits have been shown in block diagram form in order not to obscure the present invention in unnecessary detail. For the most part, details concerning timing considerations and the like have been omitted inasmuch as such details are not necessary to obtain a complete understanding of the present invention and are within the skills of persons of ordinary skill in the relevant art.
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The side portions 116 extend beyond the rear face 113 and a receiving cavity 1130 is formed therebetween. An inner wall of the side portion 116 has a block 1161, a locking slot 1162 depressing thereon and communicating with the second receiving slot 115, and a protrusion 1163 protruding into the receiving cavity 1130. The base portion 11 further has two addition portions 1164 located outside of the two side portions 116 respectively for retaining the detecting contacts 4. Two T-shaped slots (not labeled) formed between the two side portions 116 and the two addition portions 1164 for positing the detecting contacts 4, and each of the T shaped slots includes a first slot 1165 extending transversely and a second slot 1166 extending vertically and communicating with the first slot 1165.
The tongue portion 12 has a plate 121 and a retaining portion 122 retained in the second receiving slot 115. A rear end of the plate 121 is received in the first receiving slot 114. The tongue portion 12 has a top surface 123, a bottom surface 124 opposite to the top surface 123, a mating face 125 located in a front end of the plate 121 and two side surfaces 126. The plate 121 has a plurality of first receiving grooves 127 extending in a front-to-back direction and a plurality of second receiving grooves 128 located in front of the first receiving grooves 127. The retaining portion 122 has a pair of locking arms 1221 extending from a rear end thereof to lock with the locking slot 1162 and two locking portions 1222 set at a free end of the locking arms 1221 respectively.
The plate 121 further comprises a first notch 1261 depressing from one side surface 126 and a second notch 1262 depressing from another side surface 126. The first notch 1261 is closed to the front face 112 of the base portion 11 while the second notch 1262 is closed to the mating face 15 of the plate 121.
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The second contacts 22 are inserting-molded in the tongue portion 12. Each of the second contacts 22 includes a second positioning portion (not labeled) inserting-molded in the tongue portion 12, a second contacting portion 221 shaped as a flat piece extending from a front end of the second positioning portion and received in the second receiving groove 128, a second posting portion 223 extending backwardly from another end of the second posting portion 223 to be received in the first retaining slot 118 and a second soldering portion 224 extending vertically from the second positioning portion 223. The first contacting portions 211 and the second contacting portions 221 are arranged in two lines respectively along a front-to-back direction.
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The second detecting arm 42 includes a second extending portion 4201 extending forwardly from the second horizontal portion 421 located outside of the mating port 10, a second engaging portion 4202 extending forwardly from the second horizontal portion 421 and protruding into the mating port 10, and a second end portion 4203 at a free end thereof The second extending portion 4201 engages with an inner wall of the second notch 1260 at right side of the tongue portion 12. The second extending portion 4201 is closer to the mating face 125 than the first extending portion 4101. Please reference to
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The first side wall 33 further has a bridge 332 protruding outwardly, a first additional wall 333 extending from an end of the first side wall 33 and located outside of the first side wall 33 for covering the additional portion 1164 of the base portion 11, and a retaining leg 334 extending downwardly from a bottom edge of the first side wall 33. The first additional wall 333 is located behind the bridge 332. A top edge and a bottom edge of the bridge 332 connects with the first side wall, and a front edge and a rear edge of the bridge 332 is separated from the first side wall 33, by this arrangement, the bridge 332 can enhance the strength of the first side wall 33. The first detecting pad 331 has a bending part 330 slant outwardly of the first side wall 33, a first extending arm 3310 extending forwardly from the bending part 330 and a first contacting point 3311 located at a free end of the first extending arm 3310. The first contacting point 3311 is separated with the bridge 332 and would engage with the first engaging portion 4104 as a plug is inserted into the electrical connector 100. An outside surface of the first extending arm 3310 is coplanar with an outside surface of the bridge 332. Partly of the second side wall 34 at a rear end protrudes outside of the second side wall 34 to form an emboss 342, and the second detecting pad 341 extends forwardly from a front middle of the emboss 342, the second side wall 34 further has a second additional wall 343 covering over the additional portion 1164 of the right side portion 116. The second detecting pad 341 has a second contacting point 344 located at a free end thereof The second contacting point 344 would engage with the second end portion 4203 of the second detecting terminal 42. The top wall 31 and the bottom wall 32 have a plurality of fingers 36 for positioning the plug.
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It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. For example, the tongue portion is extended in its length or is arranged on a reverse side thereof opposite to the supporting side with other contacts but still holding the contacts with an arrangement indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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201220400590.3 | Aug 2012 | CN | national |